Feed mechanism.



M. W. HAZEN.

Pm MBcaAmsn. APPLICATION FILED JUNE 3, 1909. BENRWD 00258, 191.4`

Patentodpec. 15, 1914.

asnzn'ra-sxxn'rvl.

Me W, HAZEN.

FEED MECHANISM.

APPLICATION FILED JUNE3.1909 RENEWBD ocT.e,1914. 1,121,095.

/NVENOH Patented De@ 15, 1914 3 SHEETS-SHEET 2 U1 WE1 CU2 @n atented Dec. 15, 1914c 3 BHEETSAEHBET f:

M. W. HAZEN.

FEED MECHANISM.

APPLICATION HLBD mum, uma www@ 0018, 1914.

UNITED .STATES PATENT-OFFICE. ,Y

MARSHMAN w. HAzEN, or NEW YORK, N. Y., AssIGNon 'ro cORONA- TYPEwnIm COMPANY, INCORPORATED, AconronA'rION or NEW Yonx.

FEED MEcHANrsn.

sl'pecia'cation of Letters 11min.

Patented Dec. 15, 1914.

Original application ltiled Jnne 23, 1908, Serial No. 439,967. Divi-ded and' ap'plication filed June 3, 1909,-

Seri'al No. 499,873. Renewed October 8,'1914. Serial No. 865,771.

To all whom it may concern Be it known that I, IMARSHMAN W. HAZEN, a citizen ofthe United States, and a resident of New York, county and State of New York, have invented certain new'and useful Improvements in Feed Mechanisms, ofwhichthe Ifollowing is a full, clear, land exact description.

This inventionv relates to the feed mechanism of typewriting machines, and is a division of my pending application Sr. No. 439,967, filed June 23, 1908. The primary object of the invention 1s to provide a .simple and ellicient feed mechanism for the carriage of a typewriting ma'-- chine which is soconstructed that the carriage may be moved to different positions to permit the type-heads to have'a plurality of characters thereon and the carriage oper' ated 'for letter spacing no matter in wha-t position the saidcarriage may be placed.

` Another object of the invention is to provide'simple and eihcient feed mechanism for a machine in which the platen, carriage and escapement mechanism may be moved verti- ,cally and the parts so arran ed that they may be, folded over into over anging rela' tion 'to the keyboardto cause the machine to occupy less space than when in use, and in which a part of the feed mechanismis adapted to be moved'vertically with the carriage and so connected to the key-levers as to be `readily operated thereby.

A further object of the invention is to provide a machine in 'which the parts are very strong, li ht and readily accesslble and feasily repaire l 1With these and4 other objects'in view, the

invention will be hereinafter more particu#i larly described with reference to the accompanying drawings, which form a part of this specification, out in the claims at the end of'the description.

In the drawings, Figure 1 is a longitudi nal section, partly in elevation, of.'one form of machine embodying my invention. Fig.

and will then be pointed l' 2 is a rear elevation. I Fig.' '3- is an inverted. 'plan of the carrie e and part of the escapev ment and feed mec anism removed from the machine. Fig. 4 .is an enlarged vertical section of a part of the escapement mechavnism; and Fig. 5 is a fragmentary ,view of the 'upper part of the machine showing the partson which onejof the carriage guide' railsrun. l n l dThe frame 10 on which the 'several parts are mounted may be of 'any suitable construction andmay consist fside-pieces or members 11, a rearpiece or member 12 in- 'tegral with the side-pieces and with an in- 4termediate transverse bar or plate13 serving to lbrace the side members 11 substantially centrally thereof, .all of which may be 'of aluminum for the purpose of making the same light, or of sheet metal or othermatef. rial. Extending transversely of the frame at the front thereofis a transverse bar 14- which may be covered by a strip O ffelt' 15v or sound-deadening material' and which '.'serves to limit the downward movement of the key-levers 16. On' the louter end-ofthe levers 16 are 'the keys or nger-pieces '17 having the usual held and arranged close to each" other. To

the inner ,end of eachvlever 16, as at 19', is 'held a link 20,- and said link is. connected to a type-'bar 21 which..is pivoted 't'22 to a bracket 23 arranged On theV rear side or member 12 of the machineframe. i

At the'forward e'nd of each type-bar 21 is arranged a .typefhe'ad 24 having a plurality .I

of'characters 25, 26' and 27 thereon,l one'to indicate the lower case characters, the intermediatev the upper case characters, `and the Outer or 27 indicating the gures, the type-bars -and brackets 23 being arranged 1n a circular or segmental form. Each keylever when depressed yis forced against the tension'of a spring 28. Each spring is fastened at-one1 end to the key-lever and the other end to a rod 29 so that as each keylever is depressed it :will force the type-bar upward into printing position, and as soon as released will return the same to its nor-V -mal position, the'said type-bais normally restingy upon a felt strip 30 arranged upon a bar oifplate 3l extending transversely of the machine.

. The platen 32 for holding the work may be of the usual form and is mounted to rotate between side brackets 33 of the platen frame forming a part of a movable carria e 34. y I f 'lhe carriage 34 is provided with a rail 35 which is adapted to move in a slot 36 in the upper surface of a, bar 37 forming a part of the carriage bed 38 and at the rear of said -i bed, While the front of the carria ge is provided with a rail Aor" guide 39 which is adapted to rest at its lower edgeon a plurality of buttons or engaging devices 40 arranged along the upper face or Isurface of the .carriage bed in such a Way as to reduce the friction 'of the carriage to a-minimum, and at the same time hold the carriage in its proper relation to other parts of the machine. The carriage is normally forced in one direction by means o f a spring arranged within a drum 42. The drum is located under the carriage bed, and to said drum a j flexible connection, as a cord 42, is held at one end, and at rits other is fastened to a pendent arm 43 which is adjustably held by means of a screw 44 to a transversely ex- Y tending bar 45 so that when the carriage is released, as will b e presently described, by the movement of one of the key-levers while printing, the spring-operated d rum, by means'of an -|e'scapement mechanism, will force the carriage adistance equal to one space 'as isv usual" in typewriting machines.

It will be ,seen that the spring will. have" greater force for pulling the carriage in starting a line because it is -wund up than A it has when near the end of the line, and to compensate for this variation in the teiision of the spring instead of providing simplyl a plurality of buttons 40 to extend throughout the entire carriage bed 38 at intervals, I may arrange at one end of the machine Aone or more rolls 46, Fig. 5, which will engage the rail or guide 39 at one end thereof when the i' same has been moveda certain distanceby the connection 42a., the springthus causing the carriage to move more readily at one end tlianfatthe other and thereby compensating for thefuneven pull thereon by the spring. The arm 43 is supported' by a block 47 which is adjustable along the rod or bar 45 at one; end 'of the machine. V At m' near the other end of4 themachine stably held by means ofa screw 48 and Ori

well as the block 47, pro'ects a guide or work-retaining finger 50 which is adjustable along the platen to adapt different sizes of i work to be held thereon as usual. Between the adjustable fingers 50 may be arranged a guide plate oi work table 51 which may be supported by the bar 45 and is adapted to extend under and toward the fiont'of the platen to guide the work, and journaled between the lugs 52 on the work table 51 isa friction roll for causing the Work to be moved as the platen is rotated. I

As an escapement mechanism and means for operating the same I provide the carriage 34 with a rack-bar 55 underthe same, and this rack-bar is provided with the usual ratchet-shaped teeth which are adapted to be engaged by the escap'ement pawls or dogs 56 and 57, Figs. 1,13 and 4, one of which, as 56, is iixed and the other, as 57 is movable. These dogs permit the, carriage to move the distance of a single tooth in the usual way when the dogs are moved laterally trans versely of the rackV bar. The dogs 56 and 57 are substantially triangular and are carried by a horizontally movable arm 58. Thisl arm is pivoted at 59 to the carriage bed under the same 'andhas its opposite end or head, as 60, guided in a slot 61 of a bracket 62. The dogs carried bythe arm 59 move laterally of the rack-bar and allow the carria'ge to escape one tooth at a time, and said Adogs swing 1n an arc of a. circle across the face of the rack-bar in the same plane as said bar instead of in a direct line. This action causes the dogs to engage the rack teeth at one point instead of along the entire surface and thereby materially reduces the wear. and friction thereof. A spring, as 63, is arranged on the carriage bed, F' 4, and has one end passing through the xed dog 56 and is so arranged that it will only force the dog and the, arm in onedirection. .v

A stop 64 projects at an a le rfrom the arm 58, and said stop is adaptgto engage a projecting part or tooth 65- of the movable direction. The loose dog is'noi'inally yieldingly held against movement in one 'directionby a spring 66, and inthe opposite direction by asprin 67, though instead of the two springs asing spring may be employed' ifdesired. These springs 66 are flat metal st ps arranged one over the other andthe en s of said springs are ada ted toge'ngage the lower edge of the loose` og on opposite dsides of its lpivot.

yTo operatbg the escapernent nomatter what position the carriage may be in, a movable ar 68 of the escapementloperating frame is arranged transversely of the machine and a collar or projecting part 69 is provided thereon which is adapted to engage the head 60 of the .arm or dog carrier 58 so as to move the escapexxientj'dogs against the actionof Libanese the spring 63.y This bar isheld in the upper of4 thefarms or levers 70 ofthe escane- "men't iframe, which` arms are pivoted on oplposite sides of the machineto a' transverselyslot 72.

extending rod 'or lbar L71, and in the upper end of `'each of said arins 70 -is a `vertical ed at 74 toa part of the machine frame on each side thereof, and hasone end, as by a screw 75, guided intheslot 72 of the arm 70 and' itsother end connected by a link or 'rod fA'bellf-crank or angular lever 7 3y is pivot? V7 6 to a universal bar 77. Thisy universal bar 77 extends transverselyof the machine over eachkeyf'lever so that as each key-'lever is depressed, it willjraise' the bar 77 ,and move {the bell-crank' levers 73 on their pivots 74,

against the action of and'b- 'meansof the shoulder screw 75 in'- the-y slot 7210i the armsv 7 0 will thr'ow. the es# 4capementfmoving bar 6'8 outward and thereby move thefescapement arm 58 carrying the dorgaa"gainstthe tension of the spring, 63.

e armsf70, Fig. 1, maybe Vforced in' s-ward by the flatupwardly extending springs 7 7l whichv are held 1 at one end to the part 12- of'the frame andY engage the 70 at their free ends. An adjusting screw 7 7b is adapted to engage -eachfsprmg 77 to vary the pressureof the springs against the arms 70,

fand b ,meansof .the bell-crank levers 7 3 and links 6, the universal bar 77 will be forced the key-levers with any `desired pressure. This -actidn ofthe spring 77 not only serves to permit the force required to operate theVtype-.Ibars to be increased, :but they -serve to restore the type-'bars and key-levers to their normal position, and if desired the springsf28 for each key-lever may be dispensed with.-

The'machine is provided with means for raising thelentire carriage bed and mechanisms Vcarried thereby to different heights,-

to position the platen 32 properly with respect to the upper case characters and the figures on the type-heads so that the same will properly strike the work sheet'held by thev lplaten, and means are also rovided whereby the platen and the'mechanism movable therewith-may be' locked in its dif-1.

ferent positions. The cap-shift lever 78 has its'inner end fixed to a transverse rod 79' which is pivoted to' the machine frame .and said lever is extended inward to the rod 80 sc that the' two latter Iiods` may be moved in unison.

An arm 81 projects from the rod 79 to which one end of the rod 80 is fixed. This arm 81jhas a pivotal connection with the.k rcd 71 at its inner end, andsaid rod atyits'.;

ends is held to slides A.crvrods not shown,

each of which is ymovable in a bearinglo- 'Y cated at the upper rear 'corner ofthe maehine frame. The bearings are each held to the rear Aas .the lever 78 is depressed, the-bars 71 will art of the machine' frame so that' ,tion it was thought unnecessary to vraise thesides and lift the platen, carritfbed, mechanism carried thereby, and the escapement frame with the transverse bar 68 to adapt the escapement mechanism to be operated no matter in what vertical shifted position the platen' may be in. :There is also a figureshift lever and other features which are-not shown,'but as the platen shiftl mechanism forms no part of the present invenfurther describe or show the saine.

While I show and descri e features of a typewritingmachine other than those of the present invention, such features are not claimed herein as they form a part of my application hereinbefore referred to or of,

t aminimum amount ofwear takes place be` tweenjthe escapemen't elements and the carriage; an'dthat saidlfeed mechanism is so constructed that a part of the same may "se mounted upon the carriage which is adapted to be folded over above the keyboard of the Having? thus described my invention, I claim as new and' desire to secure by Letters Patent 1. In a .typewriting machina-"the combi-` nation with a support, of v4a carriage ,bed

held to said -support,a carriage held to move" along the carriage bed, la rack movable with:v thecarriage, an arm pivotally held to their carriage bed,under thesame, two dogs carried by the arm, one fixed thereto, and theother pivotally heldgtothe a'rm, said arm being arranged tomove horizontally and transversely ofthe carriage, means yield-4 in'ly holding. the, ivoted dog inone po-' sitx'ion, anangular xed stop carried by the arm adaptedte engage a. part of the pivoted dog, a springvheld '.to thefbed and engaging one of the :dogs tending normally' ,to force the in onedirection, said arm having an enlarged projecting head, and means operated by the key-levers for operating the varm and dogseto l rmit letter-spacing. 2. 'In a.'typewr1t ing machine,y the combi nation with ka support, of a carriage bed held to said support, a carria e held to move 'alongthe carriage bed,',a rac movable with the carriage, an arm pivotally held to the carriage bed under the same, two substantially triangular dogs carried bythe arm, one ixedthereto, and 'the other pivotally held to the arm, 'said'armbeing arranged to move horizontallyjand transversely o f ilse the carriage, two springs acting on the pivoted dog at different points, an angular fixed stop carried by the armadapted to engage a part of the pivoted dog, a spring held -to the bed and' normally forcing the arm in one direction, 4and means operated lby the key-levers for operating the arm andl nationl with a support, of a carriage bed held to said support, a carriage held to move along the carriage bed, a rack movable with the carriage, carriage bed, two dogs one lixed thereto, and' the other Apivotally held to the arm, said arm being arranged; to move horizontally and transversely of the carriage, two springs of different lengths arranged one above the pivoted dog at sp: to its the arm. ,In a typewriting machine, the combicarried by the arm,

different points with repivot, and means for operating held to'said support,'"acarriage held to move along the carriage bed, a rack mova las able with the carriage held to the carriage bed, vtriangular dogs carried by the arm, one fixed thereto, and the other having a tooth and .pivotally held to the arm, saidl arm being arranged to move horizontally and transversely of the carriage, springs yieldingly holding the pivoted dog in one position, an angular tlxed-stop carried by the ar'm adapted to engage the tooth of the pivoteddog, a spring secured tothe bed and tending' normally to rce the army 1n one direction, and mean*i "\per ate d 'bythe key-levers for moving the and dogs to permit letterspacing.

6. In a' typewriting machine, the combination of a support,.a carriage bed held to an arm pivotally said support, a carriageheld to move along the carriage bed, a lrack movable with the carriage, an arm pivotally held Ato the carriage bed under the same, two/dogs carried by the arm, oneiixedl thereto, and thev other pivotally heldlto the-,arrm said arm being arranged to move" horizontally and transversely of the carriage, asprlng yieldingly holding the pivoted dog 1n one position, a

`along l the, other pivotally an 'arm pivotally held to the the other and engaging two substantially .movement in one direction,

yposition relatively to the stop projecting from the arm and adapted to engage a part of the pivoted dog to limit its movement in one direction, and means for operating vthe arm for letter-spacing.

7. In a typewriting machine, the combination of a support, a carriage bed held to said support, a carriage adapted to move the bed, a rack movable with the carriage, an arm pivotally held to the bed underthe same, two dogs carried by the arm,

Ione iXed thereto and the other pivotally held to the arm, and an angularly arranged stop projecting from the arm and adapted to engage a part of the pivoted dog to limit its movement in one dlrection, and means for operating the arm.

In atypewriting machine, the combination of a support, 'a carriage bed held to said support, a carriageadapted to move along the b ed, a rack movable with the carriage, an arm pivotally held to the bed, two dogs carried by the arm, one fixed thereto and held,v to the arm, two springs acting upon the pivoted dog,and means for operating'the arm.

9. In a typewriting machine, the combination of a support, a carriage bed held to said support, a carriage adapted the bed, a rack movable with the carriage, an arm pivotally heldvto the bed, two dogs carriedv by the arm, one fixed thereto and the other pivotally held to the arm, the' fixed clog being substantially triangular and the pivoted dog having a cut away part to form shoulder, and a nation with a spport,;fofa carriage bed stop projecting from the arm and adapted to engage the shoulder of the pivote-d dog to. limit its movement in one direction, and means for letter-spacing.

10. In a typewriting machine, the combination of a support, a carriage b'ed held to said support, a carriage adaptedvto move along the bed, a rack movable with the carriage, an arm pivotally held to the bed; two dogs carried by .the arm, one fixed thereto and the other pivotally held to the arm, the pivoted dog having a cut away part to form a shoulder, an angularly arranged stop projecting from the arm and adapted to engage the shoulder of the pivoted dog to limit its means for yielddog in a certain fixed dog, and

ingly holding the pivoted means for operating the arm. 11. In a typewriting machine, the combination with a support, of a carriage mounted on said support, spring-actuated meanstending normally to .force the -carriage in one direction, means` for permitting' the carriage to have a step-by-step movement, t0- gether with means for'varymg thefrictlon between the carriage and bed to compensate for the varying tension of the spring-actuated means.'

to move along for operating the 'arm 12. In u typewriting midline, the 'combination with ulsupport, of :i Carriage mounted on said support., sp1ir1g-actuutcd moans tending nornm t0 yforce the carriage. in one direction, means for' permitting the Carringe to have a step-bystep innvement., together with a plurality of fixed and movable devices supporting the carriages for varying the friction between the carriage and the bed to compensate for' the Yarying tenion of 1U the springzictlmtd means.

This speciicztion signed und witnessed this *29th day ut' May A. D. 1909.

MARSHMAN -HAZEB VVitneses W. ,.X. TOWXER, Jr., M. DINNHAUPT. 

